Our visit to the Underground river in Sabang Pto. Princesa City was one of the most exciting part of our vacation in May-Sept. 2009. We stayed there for 3 days. We enjoyed the beautiful sceneries going to the underground river because we went there hiking through the monkey trail. My husband and me were with my sister Gem's family with three young kids aged 7,9,11. We thought they will be a problem for us but to our amazement they were still full of energy when we finished our three hour hike!! We specially enjoyed the untouched forest and beautiful flowers and the amazing construction of the stairs going up the mountain and the beautiful stones laid on the trails. We are also thankful to our guides who went with us, Mar and his son. We had stop overs in some station were we enjoyed seeing a molitor lizard, I believe the biggest I have ever seen. At first I thought is was a komodo dragon. We also saw small turtles, in a small pond in one of the stations, and also some monkeys and birds and pass small white beaches on the way. I encouraged visitors to go through the trails. It's very chalenging but worth the effort!! We took the boat going back to our cottage. We would want to back there again since we ran out of battery for our videos. Thank you and MABUHAY PHILIPPINES!!!!